I host personal stuff on the OCI always free tier and did a lot of research on this before deciding to go down this road because we know what kind of reputation

I host personal stuff on the OCI always free tier and did a lot of research on this before deciding to go down this road because we know what kind of reputation Oracle has. From what I found, people using the free tier often get their instances terminated and other resources removed and reclaimed. The suspicion is that there are some automated systems that when capacity falls below a certain threshold, they will take back resources from the "freeloading" users. (For the humor-impaired, that is tongue-in-cheek.) This is well within their right and ToS say they can do this. Nobody should be surprised or annoyed that they do. I've read reports that entering your billing details to sign up for a pay-as-you-go account will reduce but not eliminate the likelihood of this happening. You still get the always-free resources but Oracle's systems see you as a paying customer, on paper at least. This is what I did and I haven't seen any disruptions in the 6 months I've done so. In this case, however, since the whole account was suspended it sounds like the author probably got caught as a false positive in some kind of automated fraud-prevention system.